Rivet fastener



Feb. 20, 1934. w. H. FINE RIVET FASTENER Filed June 25, 1935 NVENTOR.

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ah'rf, 73m( ATTORNEYS.

Patented Feb. 20, 1934 RIVET FASTENEB William H. Fine,

Los Angeles, Calif.

Application June 23, 1933. Serial No. 677,233

1 Claim.

The present invention relates to fastening means of the rivet type especially adapted for setting in compressible material, such for example as wood.

The embodiment of the invention herein shown and described is designed especially for securing wood to metal, as in freight where wood wall and floor exterior metal framing members.

simple, durable and economical ner end is flush car construction boards are secured to It provides a fastener; its inwith the inner surface of the Wood; and it makes a tight fit in both metal and wood parts so that shifting of vented. Furthermore,

both metal and wood, by being the latter is prec it effectively excludes moisture, thereby preventing deterioration of inserted from the outside, by having no threads which would either fit loosely in the hole in the wood or damage the fibers thereof, and by having means upon both the shank of the rivet and the inner face of the washer to compress without damage thereto.

the ilbersof the wood These and other objects and advantages of the invention will be apparent from scription, standing that the form, rangement of the several within the limits of the claim without departing from tion as defined therein.

Reference should be had drawing, in which:

Fig. 1 is a longitudinal partial section of my,

complete rivet fastener as used member to a' metal member.

Fig. 2 isa similar view washer members before setting, the setting tool.

Fig. 3 is an elevation ing the portion of the which should be read construction and arparts may be varied,

the following dewith the underhereto appended,

the spirit of the invento the accompanying to secure a wood showing the rivet and and showing also of the rivet alone, showshank adjacent the head slightly modified, being straight sided.

Fig. 4 is an elevation showing another modification of said head portion of the shank.

In the drawing, the reference nates a metal strip such as is terior framing of` a freight car, and 2 numeral 1 desigused for the exis a portion of the wood siding. The rivet member comprises a shank having a head 3 at one end. The

shank is composed of two portions differing in diameter as shown at 4 and 5, said portions meeting in-an abrupt shoulder 6. The portion 4 of the shank adjacent the head is preferably tapered, as shown in the tapered portion ness of the metal member 1, so

Figs. 1 and 2, the length of being greater than the thickthas sam taper-ea portion-and the shoulder 6 e fibers of the woo t and exclude moisture. The member 1, into which the shank fits, is made e i the wood mempress the slightly larger than the hol ber 2.

The reduced portion 5 of through its end is washer member 8 over the tubular e face of said washer ing lthe fibers 10 presses into the washer, thereby ex the conical fiange tubular,

xtend into and comd to make a tight hole in the metal le shank to and as shown at '7. A

is provided on its inner face with a central conical flange 9 which fits closely nd of the shank. The inner is also provided with a second set, as in fiange 10, preferably at its periphery. When the rivet and washer are flange 9 expends the I Fig. l, the central hole in the wood, compressthereof, and the peripheral flange wood at the outer edge of the cluding moisture. 'Ijhe tubular extremity of the shank is expanded within 9 of the washer 8 securely. The outer face of the washer, and the expanded end of in from the the shank, are flush with the surface of the wood.

In setting my rivet fast metal and wood members l and 2 so that the rivet is a rivet is then driven setting is accomplish trated in Fig. 2, which has a ce ener, the holes in the are first made drive fit therein, and said outside. ed by a special tool, illusntral guide shank The 11 adapted to enter the tubular end of the rivet 35 shank. At its base, said guide shank is enlarged with a gradually increasing taper, as shown at 12,

which expands the end of the rivet into the conical'central ange tool is struck with a rivet being held by the usu ally held by the setting tool, ically positioned and driven shown.

The washer is initi so that it is automat the wood by the same operainto the surface of tion that expands For this purpose, the tool annular flat face washer and holds it in 13. The ring 14 is split, as indic both the wash ided with a shoulder formed l0! ad 16 and its handle it resiliently grips 16 of the tool, and is prov its rear end which engages a upon the tool between its he 18. When ,the washer is thus placed tool, the shank 11 the tubular end of the end of the tool the end of the 9 of the washer when the hammer, the head of the al bucking bar, not

05 rivet shank.

is provided with an 13 against which the outer face of the washer rests, and a spring gripping ring 14 which surrounds the periphery of the 100 of the latter is the rivet shank. is struck with a its position upon said face ated at 15, so that er and the head fiange 1'1 at upon the inserted into- Then, when hammer, the lio washer is driven into the surface of the wood and the end of the rivet shank is expanded into the conical central ange 9 of the washer. The gripping ring 14 recedes upon the head of the tool as the washer is driven home.

In Fig. 3. the shank portion 4' adjacent the head of the rivet is shown without taper and in Fig. 4, saidI portion is elaborated to form a straight section 4a in the frame bar 1, followed by a tapering section 4b and a straight section 4c, both the latter being embedded in the wood siding 2.

If desired the hole on the inside of the wood siding may be enlarged slightly to enable the central ange 9 ofthe washer to be more easily driven into the wood. To remove the rivet it may be punched out. x

I claim:

A rivet fastener comprising a headed shank composed of portions of relatively diirerent diameters, the portion adjacent the headbeing the thicker, said portions meeting in a shoulder, and the reduced portion being tubular at its outer end; and a washer associated with the tubular end of said inner face a conical central flange thereof ttlng tubular shank greater diameter than the normal diameter of said shank end, to enable said central ange to receive and closely embrace the wall of said shank end when said wall is expanded to set the shank and washer together, and said washer having also upon its inner race a penetrative peripheral flange.

the apex closely upon the exterior of the shank, said washer, having upon its end, and the base thereof being ofA 

